Hydraulic power transmission



Sept. 10, 1940. 1, Q HOL-rz HYDRAULIC POWER TRANSMISSION 2 Sheets-Sheet 1 Sept. 23, 1939 Filed 3 Basil 1107;;

sept. 1o', 1940.

I. B. HOLTZ HYDRAULIC POWER TRANSMISSION -Filed Sept.` 23, 1959 2 Sheets--Sheetl 2 Patenten sept. 1o, 1940 UNITED STATES PATENT OFFICE HYDRAULIC' Powim 'TRANSMISSION Ireneus Basil Holtz, Ashville, Pa. Application September 23, 1939, vSerial No. 296,321 s 8 Claimsr i/nvention relates to an hydraulic power f transmission.

An object of the invention is the provision of a transmission of the uid type' in which a driv- YI5. -ing member havingV a plurality of vanes forces the liquid against the vanes of a rotatable member for driving thesame, the driving and driven tion to vcause the liquid 'to act upona means of the driven element for causing the driven ele- 15 ment to be shifted whereby the clutch .elements e will be moved into operative relation.

Another object of the invention is the prowhich arefadapted to be moved into operative Figure 2 is a vertical section taken along the line 2-2 of Figure 1.

Figure 3 is a vertical section taken along the line 3-3 of Figure 1.

Figure 4 is a front view of a driven member 5 with parts removed. f

Figure 5 is-an enlarged fragmentary vertical `sectionofthe cooperating clutch elements.

VFigure 6 is an enlargedffragmentary vertical -section showing the sliding connection between the two elements of the driven member.

Figure 7 is an enlarged fragmentary vertical section of a positive clutch between a driving and driven shaft,

Figure 8 is a view in perspective of a section of 16 the driven wheel,

Figure 9 is a fragmentaryview in perspective of the other section of the driven wheel,

vision of' a transnssion in which a drive shaft operates a rotatable member containing blades 20` for forcing a'liquid against the blades of a driven member for causing operation of said driven member, the driven member embracing therotatable driving member and being movable laterally for causing cooperating clutch elements to lock the driving .and drivenmembers together, a I clutch being employed for connecting the drive form of the invention, and

clutch element. v. Referring more particularly Figure 10 is a vertical section of a modified Figure 11 is a fragmentary vertical section of a and driven members together for direct drive independent of the previously mentioned clutch elements.

A further object of the invention isthe provision of a transmission of the fluid type including a housing in which is mounted for rotation a driving member having vanes for forcing the A uid confined in the housing` against blades formed on a driven member which embraces the driving member, the driven member having laterally disposed elements acted upon by the fluid for causing .the driven member to shift laterally along its horizontal axis for causing cooperating clutch Y elements to connect the driving and driven meming a part Aof the specification; nevertheless,r it is to be understood that the invention is not con- A f fined to the disclosure, being susceptible of such changes and modifications as define vno materialdeparturefrom the salient features of the in-` vention as expressed in the appended claims.

In the drawings:

Figure 1` is a vertical` section of a transmission constructed in accordance with the princip1es 55 .01' ymv invention.

loss 'of fluid at all points.

A bearing I4 receives a driving shaft I 5 land is mounted on a side wall I6 of the housing. A A

packing I1 and a nut I8 prevent the loss of fluid 30 at this point.

A driven shaft` 20 is mounted in a bearing 2| carried by the side wall 22 of thehousing I Il. A packing 23 and a nut 24 prevent the lossf fluid at this point. 35

The inner end of the shaft 20 is provided with a reduced portion 25 which is received within a socket 26 formed on the inner end of the shaft I5 for maintaining the shafts in alignment.

The shaft 20`is provided with a clutch element 40 in the form of a ring 21 having pins 21a. piojecting laterally therefrom in parallel relation with the said shaft. This ring isshifted by a yoke 28 having grooves 28a to receive said ring (Fig. 11). A lever 29 pivoted at 29a on the housing 45 I0 is rocked by a handle |28 extending lthrough an opening in the housing. Thev yoke-28 extends from the lower. end of the lever and at right angles thereto.

A driving wheel, generally designated by the numeral 30, is provided with a hub portion 3| secured to the shaft 2| as shown at 32. Spokes 33 radiate from the hub and are connected to an annular ring 34 hich carries fins or blades 35. These blades are loc ted at an acute angle to radii passing through the inner ends of the. blades or fms. Furthermore, these blades may be located at an acute anglel to the ring 34. The hub 3| and spokes 33 may be applied to the opposite face of the driving wheel 30 if necessary.

A driven wheel, generally designated by the numeral 36, is formed of an inner section 31 and an outer section 38. The inner section has a hub 39 secured to the shaft 20. Upon said hub is slidably mounted the ring 21. Spring-pressed d'etents 40 are mounted in pockets in the hub 39 and are adapted to retain the ring 21 in an operative or an inoperative position. The pins 21a are slidably mounted in diametrically disposed openings |29' in the member 31 and are adapted to be projected into pockets |30 in the hub 3| for locking themember 31 and likewise the shaft 20 to the hub 3| and the shaft |5 for direct drive between the shafts. A portion of the inner sectionladjacent the periphery shown at 4| is formed into an enlarged ring which projects outwardly from the face of the section. A ring 42 is bolted at 43 to the ring section 4|. The outer periphery of the section 31 is provided with a plurality of transverse grooves or keyways 41 which are adapted to receive similarly placed lribs or keys 41qformed on the inner periphery of the section 38 so that the outer section may be shifted laterally on the inner section. The two sections, however, are locked together for simultaneous rotation by the keys and keyfways.

' The driven wheel or rotor is provided with iins or blades 50 which have the same angular relation with respect to the ring- 38 as the blades or ns 35 have respect to the ring 34 of the rotor 30. The fins 50 -are rigid with the section 38 and extend over the outer edges of the fins 35 and are spaced therefrom as shown more particularly in Fig. 1.

A pluralityof blades or Afins 5| are secured to the outer face of the section 38 of the driven wheel 36 and these fins extend downwardly and outwardly and terminate short of the inner face of the wall 22 and are located in the `space 52 which is between the wall 22 and the driven wheel 36.

Openings 5|ay are formed inthesection 38 between the blades 5| so that fluid which has acted on'the blades 50 will pass through said openings and act on the blades 5|. A ring |50 is secured to the outer periphery of the member 38and has openings |5| between the blades A downwardly curved flange |52 extends from the ring |50 and over) the -blade 5|. The-upper edges of said blades are curved to conform to the curvature of the ange |52 and aresecured theretp.

The fluid passage through and acting lon the` blades 5| exerts pressure on the member 38 to cause the same to move to the right in Fig. 1

for a purpose to be presently explained.-

As shbwn more particularly in Fig. 5, an annular flange 55 in th'e form of a ring is secured to the opposite'free ends of the blades 50. AA second ring 56 is spaced from the ring 55 and `is connected to the ring 55 by means of an annular bridging member 51. A ring 58 is formed integrally with or secured to a ring 59 which has greater thicknessthan the ring 58 and the ring 59 is secured in any approved manner tio/'the free ends of the blades 35 adjacent to the wall I6 of the housing I0. '113e ring 58 is located substantially midway between the rings 55 and 56.

A friction lining 60 is secured to one face of the ring 58 which is opposite the ring 56. A fricl the friction lining 6| will engage the outer face of the ring 55.

Referring more particularly to Fig. 10, it will be seen that a modified form of the driving and driven wheels is disclosed in which th` vanes 65 extend directly from the spokes 66 which are connected to the hub 61.

Vanes 88 extend from a ring 69 which has a portion 10 slidably keyed to the enlarged peripheral portion 12 of a disc 13 as shown at 41 and 41a. All of the'remaining parts of the device are substantially identical with" those shown in Figs. 1 to 6 inclusive and, therefore, the s ame reference numerals are employed. The only difference between the device shownin Fig. 10 and the.device illustrated in Figs. 1 to' 6 inclusive is the fact that the driven meinber and 'Power is applied to the shaft |5 for rotating the same and rotation of the shaft causes rotation of the driving wheel generally designated by the numeral 30 so that the liquid which substantially fills the housing I0 is forced against the blades 50 in Figure 1 by the blades 35, or the liquid is forced against the blades 68 by the blades 65 as shown in Figure 7. The driven wheel 36. is then caused to be revolved until the speed of rotation of the section 38 of the driven wheel 36 is such that the liquid acting on the laterally disposed blades 5| will cause the section 38 to be moved to the left in Figure 1 whereby the ring..I

56 carried by the driven member will engagethe friction lining 60 carried by the ring 58. As the speed of the member 30 increases so will the speed of the member 36 increase until the two are driven at the same speed.

When the vehicle is traveling down hill and the accelerator pedal has been released the'driven member36 will tend to rotate faster than the drive wheel 30. At this time the blades 5| will be acted upon by the uids in a reverse m. nner -to that previously explained so that the member 36 will be moved to the right i'n Fig. 1 and the friction lining 60 will engage the inner face of likewise the driving member of Fig. l arevin the the ring 56 whereby the vehicle wheels will tend' to drive the engine at the same speed as the wheels of the vehicle andthe engine will then act as a-brake to retard the speed of movement of the vehicle. A.

'I'here will be times when it will be necessary to connect theshafts. I5 and 20 directly and at .this timethe pinsr 21a will be moved into the pockets |30 in the hub 3| by rocking the handle- |28 and likewise the lever 29 and its .connected yoke 28. The yoke moves the ring' 21 and the pins 21a to the right in Figs. 1 and 10.

Iclaim: l

1. A uid transmission comprising a housing, a driving rotor in the housing, means driving/the rotor, a driven rotor embracing the driving rotor and adapted-to be revolved by uid set in motion by the ydriving rotor, the driven rotor being formed on an inner and outer section, a shaft driven by the inner section, the outer section being slidable laterally on the inner section, and means cooperatively connecting the sections for simultaneous rotation.

2. A iiuid transmission comprising a housing, a driving rotor in the housing, means driving the rotor, a driven rotor embracing the driving rotor and adapted to 'be revolved by iiuid set in motion by the 'driving rotor, the driven rotor beingl formed on an inner and outer section, a shaft driven by the inner section, the outer section being slidable laterally on the inner section, means cooperatively connecting the section for simultaneous rotation, cooperative clutch members between the driving rotor and the outer sec- Y tion being slidable laterally on the inner section.

means cooperatively connecting the section for simultaneous rotation, cooperative clutch members between the outer section and the 'driving rotor; a plurality of ins extending laterally from the outer section and adapted to,be acted uponv moved into operative 'relationship with each 5. A. fluid transmission comprising a housing, a drivingrrotor in the housing and provided with a plurality oi fins adjacent the periphery thereof, means driving said rotor, a driven rotor having a plurality of nus-embracing the periphery of the driving rotor and adapted to be revolved by iiuid set in motion by the driving rotor, A,the driven rotor having a laterally shiftable element, means on said shiftable element acted on by the fluid i'or causing lateral shifting of said element,

a cooperative clutch element on the'shiftable. element and the driving rotor for temporarily connecting the shiftable element with the driving element for a direct drive of said driven rotor,

said shiftable element being connected to the.'

driven rotor for simultaneous rotation.

6. A iiuid transmission comprising a housing adapted t0 be lled with transmission liquid, a driving rotor in the housing, means driving said rotor, a driven rotor adapted to be revolved by iluid set in motion by thev driving rotor, a ring forming a part of the driven rotor and shiitable laterally with respect to a plane passing through the driven rotor, cooperative means on the ring and driven rotor for connecting the ring for simultaneous rotation with the driven rotor, and

means acted on by the fluid set in motion by the driving rotor for causing lateral shifting of the ring, a clutch element carried by the ring, a cooperating clutch element carried by thev driving rotor and adapted to be' moved into operative relationship with each other when the ring is laterally shifted.

'LWA ii'uid transmission comprising a housing l adapted to be iilled,with transmission liquid, a

driving rotor in lthe housing, means driving said rotor, a driven rotor adapted to be revolved-by fluid set in motion by the driving rotor, a ring forming the outer part of the driven rotor and shiftable laterally with respect to a plane passing through the driven rotor, a disc forming the inner part of the driven rotor having an annular channel at the outer periphery thereof' provided with transverse grooves, said ring at its inner periphery being received by the annular channel and provided' with inwardly projecting spaced ribs received by the transverse grooves ior con.

.necting the ring to the driven rotor for simultaneous rotation, and means acted on by the iiuid set in motion by the driving' rotor for causing lateral shifting of the ring, a clutch element carried bythe ring, aY cooperating vclutch element carried by the driving rotor and adapted to be moved into operative relationship with each other when the ring isglaterally shifted.

8. A iiuid transmission comprising a housing adapted to be illled withtransmission liquid, a driving rotor in the housing, means driving said rotor, a driven rotor adapted to be revolved by iiuid set in motion by the driving rotor, a ring forming' part of the driven rotor and shiftable laterally with respect to a plane passing through the driven rotor, the driven rotor having an annular channel at the periphery thereof provided with transverse teeth, said ring at its inner periphery being provided with inwardly projecting spaced ribs, a driven rotor being 4provided with grooves at its outer 'periphery thereof to receive V'the ribs for connecting the ring to the driven' 'A marinus Basin Honrz. 

